//
//  NSDictionary+NilToChar.h
//  HuaZiChatDemo
//
//  Created by huazi on 15-4-2.
//  Copyright (c) 2015年 huifu. All rights reserved.
//

#import <Foundation/Foundation.h>

@interface NSDictionary (NilToChar)
- (NSString *)objectForKeyExtend:(NSString *)key;
@end
